My research is focused on new form factors for interaction such as tabletops, large displays, and mobile devices and on how to combine them together to create useful multi-display environments (MDEs, a.k.a. multi-surface environments). As tools, I use and believe in: sketching, hardware prototyping, qualitative observation, laboratory studies, and in a thorough knowledge of previous literature across different pools of knowledge. In particular, I believe that the areas of perception and psychophysics are often overlooked by the HCI literature, and can be instrumental in developing and validating the next generation of user interfaces.